EEG abnormalities and long term seizure outcome in high functioning autism

EEG abnormalities and long term seizure outcome in high functioning autism Electroencephalographic abnormalities may occur in autistic spectrum disorders (ASD) even in the absence of clinical seizures. These abnormalities may vary from nonspecific changes to epileptiform abnormalities and are more common compared to the overall population. The level of intelligence is a significant risk factor for epilepsy in ASD. However, the relation between the functionality of the individuals with autism and the electroencephalographic (EEG) abnormalities, and the clinical significance of these abnormalities still remain relatively unclear. In this study we investigated the presence of EEG abnormalities in sixteen children diagnosed with high-functioning ASD. EEG recording was performed for at least 2 h and included at least 90 min of sleep activity. While none of the patients had clinical seizures, 5 patients (31.3%) were detected to have EEG abnormalities. Four of these were epileptiform (25%), and one patient developed seizure during follow-up. Our results support the fact that EEG abnormalities are observed at a higher rate also in ASD with a better functionality. The potential impact of EEG abnormalities on cognition and behavior, and the risk of epilepsy should be considered during long-term follow-up of these patients. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Neurologica Belgica Springer Journals

EEG abnormalities and long term seizure outcome in high functioning autism

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Publisher
Springer International Publishing
Copyright
Copyright © 2017 by Belgian Neurological Society
Subject
Biomedicine; Neurosciences; Neurology; Neuroradiology; Medicine/Public Health, general
ISSN
0300-9009
eISSN
2240-2993
D.O.I.
10.1007/s13760-017-0785-8
Publisher site
See Article on Publisher Site

Abstract

Electroencephalographic abnormalities may occur in autistic spectrum disorders (ASD) even in the absence of clinical seizures. These abnormalities may vary from nonspecific changes to epileptiform abnormalities and are more common compared to the overall population. The level of intelligence is a significant risk factor for epilepsy in ASD. However, the relation between the functionality of the individuals with autism and the electroencephalographic (EEG) abnormalities, and the clinical significance of these abnormalities still remain relatively unclear. In this study we investigated the presence of EEG abnormalities in sixteen children diagnosed with high-functioning ASD. EEG recording was performed for at least 2 h and included at least 90 min of sleep activity. While none of the patients had clinical seizures, 5 patients (31.3%) were detected to have EEG abnormalities. Four of these were epileptiform (25%), and one patient developed seizure during follow-up. Our results support the fact that EEG abnormalities are observed at a higher rate also in ASD with a better functionality. The potential impact of EEG abnormalities on cognition and behavior, and the risk of epilepsy should be considered during long-term follow-up of these patients.

Journal

Acta Neurologica BelgicaSpringer Journals

Published: Apr 26, 2017

References

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